Some of David Unaipon's inventions include an improved hand tool for shearing sheep, a centrifugal motor, a multi-radial wheel and a mechanical propulsion device. Unfortunately, he unable to get ...

Beside them is Unaipon’s best-known invention – a modified design for shearing shears that changed the once circular blade to a straight one. It’s a design still used today. But, the shears were just ...

Indigenous inventor David Unaipon seen on the $50 note ... it’s a good time to reflect on some of the lesser-known teachings and inventions of the world’s oldest civilisation.

David Unaipon, one of Australia's great thinkers ... traditional customs and even his inventions. Unaipon traveled widely and lectured on his ideas, preached sermons and spoke about Aboriginal ...

David Unaipon smiles out at us from the fifty dollar ... nicknamed 'Australia's Leonardo da Vinci' for his inventions: his improvements to the hand-held shearing comb are still in use today.

David Unaipon was born in a bark hut in 1872 ... to develop his idea and never received a cent for his revolutionary invention. Like da Vinci, he was fascinated by perpetual motion and vertical ...

David Unaipon smiles out at us from the fifty dollar ... nicknamed 'Australia's Leonardo da Vinci' for his inventions: his improvements to the hand-held shearing comb are still in use today.